Analysis of the $\eta(548)~\rightarrow~\pi^+~\pi^-~\pi^0$ and $\eta^\prime(958)~\rightarrow~\pi^+~\pi^-~\eta$ channels using a 8-9 GeV tagged photon beam for the GlueX Experiment
ORAL
Abstract
The primary goal of the GlueX experiment is to conduct a definitive mapping of states in the light meson sector with an emphasis on searching for exotic hybrid mesons as evidence of gluonic excitations. The experiment, housed in the Hall-D facility at Jefferson Lab following its accelerator upgrade to 12 GeV, is now entering the physics data taking phase. The $\eta(548)$ and $\eta^\prime(958)$ mesons are two of the richest unflavoured light mesons readily available at GlueX energies for studying resonances. Many other light mesons have decay channels involving the $\eta$ mesons with significant branching ratios, and $\pi\eta$/$\pi\eta^\prime$ resonances are among the top contenders for possibly-accessible exotic and hybrid resonances which GlueX aims to study. As such, the ability to reconstruct pure $\eta$/$\eta^\prime$ samples and analyze their decays is of utmost importance for understanding future work on more complicated analyses. Preliminary analysis results from commissioning data will be presented.
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Authors
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Tegan Beattie
Univ of Regina
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Zisis Papandreou
Univ of Regina, University of Regina
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Justin Stevens
Jefferson Lab